Kolm was hired, along with Rodrig, to escort the body-stealing mage Fulmin to TzHaar City. He was the son of a blacksmith, and so the dry heat of the volcanic city doesn't bother him. He located an inn for the trio to stay in until Fulmin pays them for their protection.
Later he was hired, again with Rodrig, by the TzHaar-Mej to find and retrieve the outcast Ga'al-Rek. They encountered Ga'al-Rek trying to leave the city with Fulmin and were killed in the ensuing fight against the mage.